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1977 Prowler Tail lights Randy Filipovic 5-16-14  
I have a 1977 20 ft. Prowler Travel Trailer. I am replacing the tail lights but I'm having some problems.

The new tail light has 3 wires. White, green and black. I looked online and know which wire is for what.

The trailer itself has FIVE wires coming out of the body.
This is how I found them:
TWO white wires twisted together. TWO green wires twisted together and ONE red wire.

I can get a bright flasher/turn signal but not a bright running light.

All I seem to be able to achieve is a dull running light.

One of the white wires from the trailer seems to work as a ground but not the other white wire.

One white wire seems to be on its own while the other white wire seems to be with another wire. Green? Not sure, should've taken a photo.

I'm trying not to make this complicated, just describing what I saw. I think the one green wire is on it's own, as is the red wire.
TWO extra wires are messing me up.

I am lousy at electrical/wiring so any help would be appreciated.

Thanks
Re: 1977 Prowler Tail lights BUBBA THE BUS TECH 5-20-14  
1st White is ground, end of story, the white that does not work as a ground probably is the ground from the marker lights.

2nd Usually the bulb used in trailers is "DIM" on the tail side. change up to an 1157. Or better yet, good LED replacements.

3rd Once you have a proven good ground, (Trust me bad grounds are the bane of my exsistance) and know that all whites are ground and need to be tied together a test light and five minutes should tell you everything else.

Good Luck
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